81640359

素因数分解:

$3^3\times {\mathrm{19}}^1\times {\mathrm{43}}^1\times {\mathrm{3701}}^1$

素因数の和:3772

約数の個数: 32

約数和(自身を含む): 130310400

約数和(自身を除く): 48670041

約数列:

[1, 3, 9, 19, 27, 43, 57, 129, 171, 387, 513, 817, 1161, 2451, 3701, 7353, 11103, 22059, 33309, 70319, 99927, 159143, 210957, 477429, 632871, 1432287, 1898613, 3023717, 4296861, 9071151, 27213453, 81640359]

約数ペア:

[(1, 81640359), (3, 27213453), (9, 9071151), (19, 4296861), (27, 3023717), (43, 1898613), (57, 1432287), (129, 632871), (171, 477429), (387, 210957), (513, 159143), (817, 99927), (1161, 70319), (2451, 33309), (3701, 22059), (7353, 11103)]